. >> reporter: the daily commute for calvin seaver is a long one.n hour from his manhattan hone to long island's rockaway beach. so this is your office. >> this is my office. >> reporter: not bad. with homemade tools, water, imagination, and considerable skill, seaver turns one of the most common things in the world into structures that are anything but. i can't think of another art form that's more impermanent. >> even if it falls, it can last now right behind us. >> reporter: you're okay with that? >> you got to be. >> reporter: the 59-year-old artist has been creating sand castles since he with was a small boy. he almost chose a career in architecture until he had a sudden realization. >> i don't care so much about what's inside this thing. i like the outside as an object. >> you need an entrance. >> reporter: so too do the children who gather around as he works. >> are you going to round off the edges? >> i've had some wonderful encounters with people. and that's definitely nice. but if they weren't here, i would still be here doing this. >> rep

the daily commute for calvin seaver is a long one.beach. >> so this is my office. >> not bad. and imagination, and considerable skill. he turns one of the most common things in the world into but. >> i can't thing of another art art form more impermanent. collapse now behind us. >> you are okay with that? >> the artist has been creating sand castles since he was a small boy.e a reer in architecture, until he had a sudden realization. >> i don't really care so much about what is inside this thing. i like the outside as an object. >> so too do the children who gather around as he works. edges? >> i had wonderful encounters with people. that's definitely nice. they wed still be here during this. >> reporter: art for art's sake. siebert earns his living as artist assistance will sell a picture here and there. money has never been his motivation. >> i want to do something, all the time. be creative t if nobody knew i would be building a sand castle. summer or winter, he is a constant presence on rockaway beach. his creation maze disappear,

noticeable at greater distances from the transmitter can occur even though you are using a good quality seaver in perfect working order the warning alarm tone will be activated for hazardous weather watches and warnings for the following counties marine areas near the city of philadelphia in pennsylvania birds books chester delaware montgomery and philadelphia in new jersey burlington camden cumberland gloucester hundred mercer in salem in delaware can't in newcastle including upper delaware bay and in maryland including chesapeake bay north pool's island concludes the weekly test of no weather radio all hazards station k h twenty eight in philadelphia pennsylvania thanks for listening to no weather radio all hazards. oh. no no no no. kid what do. you. know who. i want to know so. on. yes. right here in the desert it just feels like everything that we would find there was a piece of the journey and it was literally the d.n.a. of the journey is and what we leave behind all of us. no matter where we're traveling you know we're all wayfarers on this planet and it's what we leave behind this is so

the daily commute for calvin seaver is a long one.ver an hour from his manhattan home to long island's rockaway beach. >> so this is your office? >> this is my office. >> not bad. >> with home made tools, water, and imagination, and considerable skill. he turns one of the most common things in the world into structures that are anything but. >> i can't thing of another art foreign minister th art form more impermanent. >> even if it falls it could collapse now behind us. >> you are okay with that? >> you got to be. >> the artist has been creating sand castles since he was a small boy. he almost chose a career in architecture, until he had a sudden realization. >> i don't really care so much about what is inside this thing. i like the outside as an object. >> you need an entrance. > so too do the children who gather around as he works. >> are you going to round the edges? >> i had wonderful encounters with people. that's definitely nice. but if they weren't here i would still be here during this. >> reporter: art for art's sake. sieber

. >> "cosby show," "family ties," the seavers, saying we're all basically the same. >> more conservativeyou had upper middle class households that aren't worried about money and balancing careers and kids and in comes "roseanne." >> what do you want me to do? throw myself off a bridge? >> yeah. and take your brother and sister with you. >> are you ever sorry we got married? >> every second of my life. >> used to slickness in the sitcoms but "roseanne" got rid of that. mostly because she was never that kind of performer. let it all hang out. >> being totally unfair just because i don't want to eat your stinking beans. >> wrong. i'm being totally unfair because that's my job. sit down and have a nice dinner with your family. >> i hate you! >> hey! >> i say disown her. >> i wanted to do a show about real people that wasn't about honey bathroom wall needs cleaning. i wanted to do a show of the joy and horror of life. >> every person from a family recognizes all that stuff. human beings are a huge pain in the ass. how any of them get along with any others of them -- they really don't actually

(jr stone) reporter lauren seaver goes in depth tonight she spoke with some of those who knew him besttammy grodt, grodt's mother: "i'm sorry that he can't continue to do good work in the world. i'm sorry that his energy isn't here."robert grodt's mother and sister lean on each other for support after losing their son and brother in his fight against isis.this is grodt a few months ago.robert grodt / file /no name font needed:"i'm gonna go out to syria i'm gonna go this is something i care about."five months after arriving in syria to help the kurdish independence movement, local activist robert grodt is killed by gunfire.his family receiving the phone call last weekend.stephanie eason, grodt's sister:"they said it was the state department from the iraqi embassy and they were calling concerning robert. i hit the floor and handed the phone to my mom and said 'mom you have to take this call.'"grodt went to syria in february just days after his 28th birthday.he joined a kurdish militia called the "people's protection units" also known as ypg.in this video grodt explains his reasons for ma